Why Search Marketers Are Losing Out With Search Retargeting
Search Retargeting finds those individuals who have searched on Google, Yahoo! or Bing for a keyword that matters to your campaign, but who have not visited your site before.
Unlike site retargeting that talks only to those people who have abandoned the site without competing an action, Search Retargeting is for new customer generation.
Read the rest of the article on the Search Engine Land's web site.